[aligned-ibrp-e-05]-In an Invoice line (ibg-25) where the Invoiced item VAT category code (ibt-151) is "Exempt from VAT", the Invoiced item VAT rate (ibt-152) shall not be there.
aligned-ibrp-e-05cac:InvoiceLine/cac:Item/cac:ClassifiedTaxCategory[normalize-space(cbc:ID) = 'E'][cac:TaxScheme/normalize-space(upper-case(cbc:ID))='VAT'] | cac:CreditNoteLine/cac:Item/cac:ClassifiedTaxCategory[normalize-space(cbc:ID) = 'E'][cac:TaxScheme/normalize-space(upper-case(cbc:ID))='VAT']not(cbc:Percent)